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oLIvER fA. KELLY; orl wooNsocKEr, RHODE f ISLAND.

sHUT'rLELMTI'oN or Looms.

Specificationoi Letters 'Patent No. 7;417, dated June 4, 1850.

ToczZZ whom it may concern t BeA it# known` that 1, OLfvER Af KELLY, of WVoonsocket, Iin the vcounty of Providence andState of Rhodelsland, haveinvented a new andJv improved construction `and arrangement of `what is commonly calledthe Bat` `wing shi1ttle-moti'on forlpower-looms, as `used-by Sharp and Roberts, ofManche'ster, England; and I do herebyfdeclare that the following is'a full, clear, and exactdescription of the same, referencebeing hadtothe annexed drawings of the same, making part ofr this specification," in fwhichj i Figure l is a top view, and Fig. 2 a front elevation of a skeleton of a loom with my `improvements applied thereto,V and Figs. 3 and 4 are views in perspective of the lever which communicates motion from the `wiper to the picker stick.A

The bat-wing shuttle motion as constructed by Sharp and Roberts is not adapted to power .looms working at the high velocity with which looms for weaving cotton are driven at the present t-ime, although it was very well calculated for the comparatively slow motion with which looms were driven a few years ago. As this motion was considered to be in many respects superior to all others, it has for some time been a subject of regret that it is not applicable to the high velocity at which looms must now be driven in order to manufacture cloth ata marketable price. To supply this desideratum, by adapting this motion to high velocities, is t-he object of my present invention, which I will proceed to describe, premising that such parts only of the loom as are directly connected with or essential to the illustration of my improvements will be referred to in this specification.

In the accompanying drawings a is the frame of the loom made in the usual manner, b the shuttle boxes mounted upon the lay c, which is supported on a rock shaft d.

e e are the picker sticks, f the crank shaft which by means of the connecting rods g g communicates the usual vibratory lnotion to the lay. j

h z' are cog wheels gearing into each other. The former is mounted upon the cam or main driving shaft lc, the latter upon the crank shaft f, the wheel z' being half the diameter of 7L, so that the latterturns once while the former turns twice, which produces the proper relative motion of the parts, Upon the cam shaft lf; .two driving wheel 'mf is placed, Iand heldin its position by suitable collets, pins &c. w

an are horizontal levers mounted `upon verticalpivots ai ,fr which are secured to slotted bracket-s o o fastened to the inner sides Iof the frame, the slots inthe brackets vadmitting of tlreadjustment of the pivots,`to

curve, calledthe bat-wing from afancied Aresemblance `tothe Wing of a bat,` the convex side ofthe curvedlpart l and theconcave i side of the curvedpartlbeing next to the driving arms; the `concave part (2) is for the friction rollers or wipers m on the ends ofthe driving arms to strike against, to give the sudden motion to the lever which throws the shuttle, the convex portion is to prevent too sudden a reaction of the lever when drawn back by the spring, by easing it off gradually against the roller as `the latter passes up. By this means also the picker stick is held at the inner end of the shuttle box a sutlicient length of time to prevent the accidental insertion of a shuttle in. each shuttle box at the same time. The curved extremities of the levers are provided with sockets 3 to receive the hinder end of the part n and also to allow of their adjustment thereon to increase or diminish the distance of the curved extremities from the pivots on which the levers turn, and to set them so that the driving arms will strike them at the proper time to throw the shuttle through the shed at that point in the arc of vibration of the lay, which experience may demonstrate to be best in each particular case. The frontl ends of the levers n are connected with the picker sticks by straps g g.

To produce the requisite motions of the picker sticks by the device just described the cam shaft and its driving arms are turned so as to ascend on the back and descend on the front side of the loom, during the down stroke of each arm it strikes the concave part 2 of the lever which projects obliquely into the plane of its motion, deflecting it suddenly outward and its opposite or front end inward, the latter end through the `arms m m are placed equidistant fromits xcenter, and radiating 1n opposite directions. On the ends of each of these arms a friction :bring the `levers n n `nearer to or farther rfrom the `driving arms, the rear ends ofthe `adjustablelevers??l areformed with a double medium of the connecting strap (g) pulling On comparing this shuttle motion with that of Sharp and Roberts it will be perceived thatI it differs from it in the following particulars; first the picker stick vibrates with the lay and is consequently always at the same distance from the driver, while in the shuttle motion of Sharp and Roberts the picker stick does not vibrate and the dis-A tance between it and the driver is constantly varying. Second-in the `motion of Sharp and Roberts the bat wing lever turns upon a long horizontal shaft supported in two pillow blocks which do not possess lthe advantage of being easily and quickly moved in their position to adjust the'bat wing; while in my motion the bat wing lever turns upon a single upright pivot, which is in such a position that it can be easily got at, and can be easily moved by slackening and tightening a single nut, to adjust the throw of the shutt-le to the quality of the filling or the greater or less ease with which the guard motion is operated. This facility' of adjustment is of considerable importance as its frequent performance is rendered ne@ essary by a variety of causes.

What I claim as my invention and desire to secure by Letters Patent islto cause it to throw the shuttlewith the proper degree of suddenness and velocity when the loom is working at a high speed; this arrangement admitting Vof the'easy and quick graduation of the suddenness and velocity with which the shuttle is thrown as herein set forth.

In testimony whereof I have hereunto subscribed my name.-

OLIVE-R A. KELLY.

l/Vitnesses:

WILLIAM J. HOHER, HORACE Coon. 

